Spacetime paradox!

Progress

Set up a simple entity tree with zooming and rotation. Also added sprite, audio, deferred loading (since there is about no other way of loading things in web dev, it seems) and input support – to a really simple extent – but I will have to debug it later today, I’m not sure how much of that actually works.

The fact that the compiled source code is already over 200 kilobytes is also bothering me. But hopefully libraries take up most of that, and a single music track will probably take more anyway.